qurlinfo.cpp

奇趣公司比较新的qt/emd版本

    Specifies the \a size of the URL.

    If you call this function for an invalid URL info, this function
    turns it into a valid one.

    \sa isValid()
*/

void QUrlInfo::setSize(qint64 size)
{
    if (!d)
        d = new QUrlInfoPrivate;
    d->size = size;
}

/*!
    Specifies that the URL has access permissions \a p.

    If you call this function for an invalid URL info, this function
    turns it into a valid one.

    \sa isValid()
*/

void QUrlInfo::setPermissions(int p)
{
    if (!d)
        d = new QUrlInfoPrivate;
    d->permissions = p;
}

/*!
    Specifies that the object the URL refers to was last modified at
    \a dt.

    If you call this function for an invalid URL info, this function
    turns it into a valid one.

    \sa isValid()
*/

void QUrlInfo::setLastModified(const QDateTime &dt)
{
    if (!d)
        d = new QUrlInfoPrivate;
    d->lastModified = dt;
}

/*!
    Destroys the URL info object.
*/

QUrlInfo::~QUrlInfo()
{
    delete d;
}

/*!
    Assigns the values of \a ui to this QUrlInfo object.
*/

QUrlInfo &QUrlInfo::operator=(const QUrlInfo &ui)
{
    if (ui.d) {
        if (!d)
            d= new QUrlInfoPrivate;
        *d = *ui.d;
    } else {
        delete d;
        d = 0;
    }
    return *this;
}

/*!
    Returns the file name of the URL.

    \sa isValid()
*/

QString QUrlInfo::name() const
{
    if (!d)
        return QString();
    return d->name;
}

/*!
    Returns the permissions of the URL. You can use the \c PermissionSpec flags
    to test for certain permissions.

    \sa isValid()
*/

int QUrlInfo::permissions() const
{
    if (!d)
        return 0;
    return d->permissions;
}

/*!
    Returns the owner of the URL.

    \sa isValid()
*/

QString QUrlInfo::owner() const
{
    if (!d)
        return QString();
    return d->owner;
}

/*!
    Returns the group of the URL.

    \sa isValid()
*/

QString QUrlInfo::group() const
{
    if (!d)
        return QString();
    return d->group;
}

/*!
    Returns the size of the URL.

    \sa isValid()
*/

qint64 QUrlInfo::size() const
{
    if (!d)
        return 0;
    return d->size;
}

/*!
    Returns the last modification date of the URL.

    \sa isValid()
*/

QDateTime QUrlInfo::lastModified() const
{
    if (!d)
        return QDateTime();
    return d->lastModified;
}

/*!
    Returns the date when the URL was last read.

    \sa isValid()
*/

QDateTime QUrlInfo::lastRead() const
{
    if (!d)
        return QDateTime();
    return d->lastRead;
}

/*!
    Returns true if the URL is a directory; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isDir() const
{
    if (!d)
        return false;
    return d->isDir;
}

/*!
    Returns true if the URL is a file; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isFile() const
{
    if (!d)
        return false;
    return d->isFile;
}

/*!
    Returns true if the URL is a symbolic link; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isSymLink() const
{
    if (!d)
        return false;
    return d->isSymLink;
}

/*!
    Returns true if the URL is writable; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isWritable() const
{
    if (!d)
        return false;
    return d->isWritable;
}

/*!
    Returns true if the URL is readable; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isReadable() const
{
    if (!d)
        return false;
    return d->isReadable;
}

/*!
    Returns true if the URL is executable; otherwise returns false.

    \sa isValid()
*/

bool QUrlInfo::isExecutable() const
{
    if (!d)
        return false;
    return d->isExecutable;
}

/*!
    Returns true if \a i1 is greater than \a i2; otherwise returns
    false. The objects are compared by the value, which is specified
    by \a sortBy. This must be one of QDir::Name, QDir::Time or
    QDir::Size.
*/

bool QUrlInfo::greaterThan(const QUrlInfo &i1, const QUrlInfo &i2,
                            int sortBy)
{
    switch (sortBy) {
    case QDir::Name:
        return i1.name() > i2.name();
    case QDir::Time:
        return i1.lastModified() > i2.lastModified();
    case QDir::Size:
        return i1.size() > i2.size();
    default:
        return false;
    }
}

/*!
    Returns true if \a i1 is less than \a i2; otherwise returns false.
    The objects are compared by the value, which is specified by \a
    sortBy. This must be one of QDir::Name, QDir::Time or QDir::Size.
*/

bool QUrlInfo::lessThan(const QUrlInfo &i1, const QUrlInfo &i2,
                         int sortBy)
{
    return !greaterThan(i1, i2, sortBy);
}

/*!
    Returns true if \a i1 equals to \a i2; otherwise returns false.
    The objects are compared by the value, which is specified by \a
    sortBy. This must be one of QDir::Name, QDir::Time or QDir::Size.
*/

bool QUrlInfo::equal(const QUrlInfo &i1, const QUrlInfo &i2,
                      int sortBy)
{
    switch (sortBy) {
    case QDir::Name:
        return i1.name() == i2.name();
    case QDir::Time:
        return i1.lastModified() == i2.lastModified();
    case QDir::Size:
        return i1.size() == i2.size();
    default:
        return false;
    }
}

/*!
    Returns true if this QUrlInfo is equal to \a other; otherwise
    returns false.

    \sa lessThan(), equal()
*/

bool QUrlInfo::operator==(const QUrlInfo &other) const
{
    if (!d)
        return other.d == 0;
    if (!other.d)
        return false;

    return (d->name == other.d->name &&
            d->permissions == other.d->permissions &&
            d->owner == other.d->owner &&
            d->group == other.d->group &&
            d->size == other.d->size &&
            d->lastModified == other.d->lastModified &&
            d->lastRead == other.d->lastRead &&
            d->isDir == other.d->isDir &&
            d->isFile == other.d->isFile &&
            d->isSymLink == other.d->isSymLink &&
            d->isWritable == other.d->isWritable &&
            d->isReadable == other.d->isReadable &&
            d->isExecutable == other.d->isExecutable);
}

/*!
    \fn bool QUrlInfo::operator!=(const QUrlInfo &other) const
    \since 4.2

    Returns true if this QUrlInfo is not equal to \a other; otherwise
    returns false.

    \sa lessThan(), equal()
*/

/*!
    Returns true if the URL info is valid; otherwise returns false.
    Valid means that the QUrlInfo contains real information.

    You should always check if the URL info is valid before relying on
    the values.
*/
bool QUrlInfo::isValid() const
{
    return d != 0;
}

#endif // QT_NO_URLINFO